Home / 21,115,365.60-31,661,502.10-16,766,441.06

Finding the Fourth Proportional to 21,115,365.60, 31,661,502.10 and 16,766,441.06

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Solution

The fourth proportional to 21,115,365.60, 31,661,502.10 and 16,766,441.06 is: 25,140,493.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,115,365.60 : 31,661,502.10 = 16,766,441.06 : x
  2. Step 2: Convert to fraction form
    21,115,365.60/31,661,502.10 = 16,766,441.06/x
  3. Step 3: Cross multiply
    21,115,365.60x = 31,661,502.10 × 16,766,441.06
  4. Step 4: Simplify right side
    21,115,365.60x = 530,850,708,630,492.62
  5. Step 5: Solve for x
    x = 530,850,708,630,492.62/21,115,365.60
  6. Step 6: Final answer
    x = 25,140,493.35

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.